EP1076353A1 - Lampe aux halogènures métalliques sans mercure - Google Patents

Lampe aux halogènures métalliques sans mercure Download PDF

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Publication number
EP1076353A1
EP1076353A1 EP00107219A EP00107219A EP1076353A1 EP 1076353 A1 EP1076353 A1 EP 1076353A1 EP 00107219 A EP00107219 A EP 00107219A EP 00107219 A EP00107219 A EP 00107219A EP 1076353 A1 EP1076353 A1 EP 1076353A1
Authority
EP
European Patent Office
Prior art keywords
metal halide
group
mercury
halide lamp
lamp according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP00107219A
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German (de)
English (en)
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EP1076353B1 (fr
Inventor
Klaus Dr. Stockwald
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Osram GmbH
Original Assignee
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
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Publication of EP1076353A1 publication Critical patent/EP1076353A1/fr
Application granted granted Critical
Publication of EP1076353B1 publication Critical patent/EP1076353B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/12—Selection of substances for gas fillings; Specified operating pressure or temperature
    • H01J61/125—Selection of substances for gas fillings; Specified operating pressure or temperature having an halogenide as principal component
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/68—Lamps in which the main discharge is between parts of a current-carrying guide, e.g. halo lamp

Definitions

  • the invention relates to a mercury-free metal halide lamp according to the Preamble of claim 1.
  • These are in particular lamps for the light color warm white (WDL) for general lighting, in particular is dimmable.
  • WO 98/45872 describes a mercury-containing metal halide lamp, the Filling contains essentially Na and Tl-containing metal halides. Add to that Dy and Ca metal halides. This filling refers to a neutral white Light color from 3900 to 4200 K.
  • the molar ratio of the two metal halides Ca-MH: Dy-MH is preferably between 0.3 and 4.
  • the second group preferably additionally comprises a metal halide of Tl in an amount of up to 30 ⁇ mol / cm 3 , preferably 5 to 25 ⁇ mol / cm 3 .
  • the first group can also include a metal halide of Na in a proportion of up to 30 mol%, preferably at most 5 mol%, of the Total quantity.
  • the first group preferably additionally comprises a metal halide of C in an amount of up to 40 ⁇ mol / cm 3 , preferably 5 to 30 ⁇ mol / cm 3 .
  • the cold filling pressure of the noble gas is advantageously between 100 and 10,000 mbar.
  • the members of the second group can additionally as metals in a share up to 30 mol% are added. You can also add at least one elemental metal or a metal halide of the metals Al, Ga, Sn, Mg, Mn, Sb, Bi, Sc is added to the second group and in total additionally up to one Proportion up to 40 mol%.
  • At least one metal halide of the metals Sr, Ba, Li and / or the rare earth metals are added to the first group altogether additionally up to a proportion of up to 30 mol%.
  • the discharge vessel is preferably ceramic and has a typical ratio the internal longitudinal / lateral maximum dimensions of at most 3.5.
  • the dimensioning of the inner wall surface is advantageously chosen so that an internal wall load of 10 to 60 W / cm 2 prevails during operation.
  • the mercury-free filling is essentially a low-Na filling (preferably at most 5 mol% Na halide in the filling fraction with a boiling point> 1000 ° C).
  • Your composition is chosen so that at least Dy halide and Ca halide as Filling components in the proportion of filling substances with a boiling point> 1000 ° C are contained, and that at least one metal halide MH with boiling point ⁇ 1000 ° C is included, which is selected from the group In, Zn, Hf, Zr.
  • the ratio Ca-MH / DyMH> 2 (especially for values> 4), it may be advantageous to add further metal halides to the filling, preferably the lanthanides mentioned below in a proportion of up to 25 mol% to compensate for the overhang in the red spectral range caused by the proportion of CaJ 2 .
  • the optimal one The quantity is dependent on other components to be selected by the smallest deviation to achieve from the Planck curve.
  • the spectral emission of the light source lies in the warm white spectral range 2700 K and 3500 K, and the general color rendering index is preferred Ra> 90, where the red rendering index of saturated red is R9> 60.
  • a particularly noteworthy feature of the present invention is that excellent color rendering consistency even when dimming the lamp to approximately 50% of the lamp power.
  • Previous fillings were suitable not for dimming. This is due to the balanced mixture between Dy and Ca. in connection with the possibility of the Ca (and possibly also Cs) in the vapor phase enriched by molecular formation (formation of complexes). That mechanism is particularly effective with mercury-free fillings. This makes it independent of performance the spectral emission distribution in the visible spectral range achieved, corresponding to a pronounced dimming ability.
  • the lamp filling can contain Cs halide in the filling component of the filling substances with a boiling point> 1000 ° C. in a mol% concentration, preferably between 10-50%, the total amount of CsX typically being between 5-40 ⁇ mol / cm 3 . Because CsX improves arch stability and increases light output.
  • the lamp fill can contain at least one metal halide with a boiling point ⁇ 1000 ° C, which arises from the group Al, Ga, Sn, Mg, Mn, Sb, Bi, Sc, These substances can be mixed in for exact voltage adjustment; some substances are also suitable for influencing the spectral emission distribution.
  • the lamp filling can additionally contain at least one elemental metal which is derived from the group Tl, In, Zn, Al, Ga, Sn, Mg, Mn, Sb, Bi, Sc, the filling quantity being in the range between 0.5-50 ⁇ mol / cm 3 .
  • elemental metal which is derived from the group Tl, In, Zn, Al, Ga, Sn, Mg, Mn, Sb, Bi, Sc, the filling quantity being in the range between 0.5-50 ⁇ mol / cm 3 .
  • the optional proportion of Na halide can be up to 30 mol% of the filling proportion the filling components are included, which have a boiling point> 1000 ° C. NaJ typically worsens the dimming behavior with regard to the constancy of the Color rendering, but it can be mixed to increase the light output become.
  • the boiling point in the filling fraction > 1000 ° C additionally at least one halide of the lanthanides and from the Group Sr and Ba and Li, typically contained in the molar concentration up to 35 mol% his.
  • These substances are used to optimize the spectral distribution in the visual Spectral range admixed, e.g. B .: Sr, Ba and Li for further improvement of the Emission in the red, lanthanides in the blue and green spectral range.
  • the ionizable filling preferably consists of at least one noble gas (Ar, Kr, Xe) with a cold filling pressure of 100-10000 mbar.
  • a cold filling pressure of typical more than 500 mbar Ar in particular, an extended service life is possible. Under 100 mbar leads to excessive electrode loading during the start-up phase Lamp on, which leads to poor maintenance behavior.
  • a metal halide lamp with an output of 70 W is shown schematically in FIG. It consists of a cylindrical outer bulb 1 made of quartz glass which defines a lamp axis and is squeezed (2) and base (3) on two sides.
  • the axially arranged discharge vessel 4 made of Al 2 O 3 ceramic forms an ellipsoid and is bulged in the middle 5 and has two cylindrical ends 6a and 6b. But it can also be cylindrical with elongated capillary tubes as plugs.
  • the discharge vessel is held in the outer bulb 1 by means of two power supply lines 7, which are connected to the base parts 3 via foils 8.
  • the power supply lines 7 are welded to bushings 9, 10, which are each fitted in an end plug 11 at the end of the discharge vessel.
  • the bushings 9, 10 are, for example, molybdenum pins. Both executions 9, 10 are on the plug 11 on both sides and hold electrodes on the discharge side 14, consisting of an electrode shaft 15 made of tungsten and an am End pushed onto the discharge end 16.
  • the bushing 9, 10 is each with the electrode shaft 15 and with the external power supply 7 butt welded.
  • the end plugs 11 essentially consist of a cermet known per se with the ceramic component Al 2 O 3 and the metallic component tungsten or molybdenum.
  • the filling of the discharge vessel consists of an inert ignition gas / buffer gas, here argon with a cold filling pressure of 250 mbar and from various additions of metal halides.
  • the fillings according to the invention are shown in Tab. 1.
  • the boiling points of the metal halides are also given in the last two columns.
  • the elliptically shaped ceramic discharge vessel has an inner volume of 0.32 cm 3 and an inner surface of 2.35 cm 2 with an arc length of 9 mm.
  • the operating voltage was approximately 60 V in the first exemplary embodiment.
  • the luminous efficacy is 50 Im / W.
  • the color rendering index Ra and the R9 value are just under 100. These very good values are independent of a dimming down to 50% of the full output, as can be seen in FIGS. 2 and 3, where the wall load between 20, 30 and 40 W / cm 2 varies (corresponding to 50%, 75% and 100% dimming level). Therefore, this lamp is very suitable as a replacement for incandescent lamps.
  • the color temperature T n can be regulated continuously between 3400 and 2950 K by dimming. The change in the color coordinates x and y during dimming follows almost exactly along the Planck curve (FIG. 4). The correct amount of addition of TlJ plays an important role in this. This finding is extremely advantageous compared to previous fillings.
  • the spectrum of which is shown in FIG. 5 the operating voltage was 80 V.
  • the R9 index varies between 60 and 85, depending on the dimming, the Ra was always well above 90, the color temperature when dimming between 50 and 100% was almost constant at around 3100 K.
  • the R9 value is around 50 at low dimming close to 50% (corresponding to a wall load of 20 W / cm 2 ), but quite high, at 75 to 80 with high dimming up to 100% of the possible power (wall load of typically 32 W / cm 2 ).
  • the color coordinates x and y are shown in FIG. 7.
  • the operating voltage was 73 V.
  • a mixture of InJ and HfBr 4 was used to adjust the voltage.
  • Dimming (Figure 9) shows very stable behavior: all color indices (Ra and R9) show almost constant behavior and almost no dependence on the degree of dimming.
  • the red value R9 is clearly above 70 and the Ra is around 95.
  • the color coordinates x and y (FIG. 10) are at a constant color temperature of around 3000 K when dimmed.
  • the discharge vessel had an ellipsoid represents the ratio of the internal longitudinal to lateral dimension about 1.7.
  • the inner axial length was 12 mm (as the total length of the inscribed ellipse (shown in dashed lines in Figure 1) interpreted), the inner maximum diameter of the circularly bulged discharge vessel transverse to the lamp axis was 7 mm.

Landscapes

  • Discharge Lamp (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
EP00107219A 1999-08-10 2000-04-01 Lampe aux halogènures métalliques sans mercure Expired - Lifetime EP1076353B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19937312 1999-08-10
DE19937312A DE19937312A1 (de) 1999-08-10 1999-08-10 Quecksilberfreie Metallhalogenidlampe

Publications (2)

Publication Number Publication Date
EP1076353A1 true EP1076353A1 (fr) 2001-02-14
EP1076353B1 EP1076353B1 (fr) 2004-08-04

Family

ID=7917556

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00107219A Expired - Lifetime EP1076353B1 (fr) 1999-08-10 2000-04-01 Lampe aux halogènures métalliques sans mercure

Country Status (10)

Country Link
US (1) US6469446B1 (fr)
EP (1) EP1076353B1 (fr)
JP (1) JP4531946B2 (fr)
KR (1) KR100710930B1 (fr)
CN (1) CN1248285C (fr)
AT (1) ATE272895T1 (fr)
CA (1) CA2315492A1 (fr)
DE (2) DE19937312A1 (fr)
ES (1) ES2224949T3 (fr)
HU (1) HU224078B1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010024584A (ko) * 1998-09-16 2001-03-26 모리시타 요이찌 무수은 메탈할라이드램프
EP1158567A2 (fr) * 2000-05-26 2001-11-28 Matsushita Electric Industrial Co., Ltd. Dispositif de service pour une lampe à décharge à haute intensité exempte de mercure et lampe aux halogènures métalliques sans mercure
WO2007078786A2 (fr) * 2005-12-16 2007-07-12 General Electric Company Lampe halogène de métal céramique

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6639343B2 (en) 2000-07-14 2003-10-28 Matsushita Electric Industrial Co., Ltd. Mercury-free metal halide lamp
JP2003100251A (ja) * 2001-09-27 2003-04-04 Koito Mfg Co Ltd 放電ランプ装置用水銀フリーアークチューブ
JP2004063158A (ja) * 2002-07-25 2004-02-26 Koito Mfg Co Ltd 放電バルブ
US7218052B2 (en) * 2002-09-06 2007-05-15 Koninklijke Philips Electronics, N.V. Mercury free metal halide lamp
JP3778920B2 (ja) * 2003-06-16 2006-05-24 松下電器産業株式会社 メタルハライドランプ
JP4295700B2 (ja) * 2003-08-29 2009-07-15 パナソニック株式会社 メタルハライドランプの点灯方法及び照明装置
JP4320379B2 (ja) * 2003-12-22 2009-08-26 ハリソン東芝ライティング株式会社 メタルハライドランプおよびメタルハライドランプ点灯装置
US7671537B2 (en) 2004-03-08 2010-03-02 Koninklijke Philips Electronics N.V. Metal halide lamp
US7012375B2 (en) * 2004-03-23 2006-03-14 Osram Sylvania Inc. Thallium-free metal halide fill for discharge lamps and discharge lamp containing same
US7265493B2 (en) * 2004-10-04 2007-09-04 General Electric Company Mercury-free compositions and radiation sources incorporating same
US20080001543A1 (en) * 2004-10-29 2008-01-03 Takahito Kashiwagi Metal Halide Lamp and Lighting Equipment
US7847484B2 (en) * 2004-12-20 2010-12-07 General Electric Company Mercury-free and sodium-free compositions and radiation source incorporating same
WO2006117713A2 (fr) 2005-04-29 2006-11-09 Koninklijke Philips Electronics N.V. Lampe a halogenure metallise
JP2007053004A (ja) * 2005-08-18 2007-03-01 Matsushita Electric Ind Co Ltd メタルハライドランプおよびそれを用いた照明装置
US7714512B2 (en) * 2005-10-19 2010-05-11 Matsushita Electric Industrial Co., Ltd. High red color rendition metal halide lamp
US7633228B2 (en) * 2005-11-30 2009-12-15 General Electric Company Mercury-free metal halide discharge lamp
US8710742B2 (en) 2011-07-06 2014-04-29 Osram Sylvania Inc. Metal halide lamps with fast run-up and methods of operating the same
CN104183466A (zh) * 2013-05-28 2014-12-03 海洋王照明科技股份有限公司 陶瓷金卤灯
GB2538808A (en) * 2015-05-29 2016-11-30 Hanovia Ltd Mercury-free gas-discharge lamp
CN106876244A (zh) * 2015-12-11 2017-06-20 李昆达 无电极灯

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998045872A1 (fr) * 1997-04-09 1998-10-15 Koninklijke Philips Electronics N.V. Lampe halogene
DE19731168A1 (de) * 1997-07-21 1999-01-28 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Beleuchtungssystem

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3758805A (en) * 1971-10-27 1973-09-11 Us Navy A high intensity light source
JPS5231583A (en) * 1975-09-05 1977-03-10 Toshiba Corp Lamp discharging metallic fumes
JPH0992204A (ja) * 1995-09-25 1997-04-04 Toshiba Lighting & Technol Corp メタルハライドランプとその点灯装置および照明装置
EP0784334B1 (fr) * 1996-01-11 2000-05-03 Osram Sylvania Inc. Lampe à halogénures métalliques
US5814944A (en) * 1996-01-22 1998-09-29 Matsushita Electric Works, Ltd. High pressure sodium vapor lamp with high color rendering
JPH1021833A (ja) * 1996-06-28 1998-01-23 Iwasaki Electric Co Ltd メタルハライドランプ用封入物の製造方法
TW385479B (en) * 1998-04-08 2000-03-21 Koninkl Philips Electronics Nv Metal-halide lamp
DE19857585A1 (de) * 1998-12-14 2000-06-15 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Metallhalogenidlampe
EP1092231B1 (fr) * 1999-04-29 2005-04-27 Koninklijke Philips Electronics N.V. Lampe a halogenure metallique
US20030141818A1 (en) * 2002-01-25 2003-07-31 Kelly Timothy Lee Metal halide lamp with enhanced red emission

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998045872A1 (fr) * 1997-04-09 1998-10-15 Koninklijke Philips Electronics N.V. Lampe halogene
DE19731168A1 (de) * 1997-07-21 1999-01-28 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Beleuchtungssystem

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010024584A (ko) * 1998-09-16 2001-03-26 모리시타 요이찌 무수은 메탈할라이드램프
EP1158567A2 (fr) * 2000-05-26 2001-11-28 Matsushita Electric Industrial Co., Ltd. Dispositif de service pour une lampe à décharge à haute intensité exempte de mercure et lampe aux halogènures métalliques sans mercure
EP1158567A3 (fr) * 2000-05-26 2002-01-16 Matsushita Electric Industrial Co., Ltd. Dispositif de service pour une lampe à décharge à haute intensité exempte de mercure et lampe aux halogènures métalliques sans mercure
US6608444B2 (en) 2000-05-26 2003-08-19 Matsushita Electric Industrial Co., Ltd. Mercury-free high-intensity discharge lamp operating apparatus and mercury-free metal halide lamp
WO2007078786A2 (fr) * 2005-12-16 2007-07-12 General Electric Company Lampe halogène de métal céramique
WO2007078786A3 (fr) * 2005-12-16 2008-08-14 Gen Electric Lampe halogène de métal céramique

Also Published As

Publication number Publication date
DE19937312A1 (de) 2001-02-15
KR100710930B1 (ko) 2007-04-23
HUP0003245A3 (en) 2002-01-28
JP4531946B2 (ja) 2010-08-25
CN1283867A (zh) 2001-02-14
ES2224949T3 (es) 2005-03-16
CA2315492A1 (fr) 2001-02-10
KR20010050037A (ko) 2001-06-15
EP1076353B1 (fr) 2004-08-04
HU224078B1 (hu) 2005-05-30
HU0003245D0 (en) 2000-10-28
JP2001076670A (ja) 2001-03-23
HUP0003245A2 (en) 2001-03-28
CN1248285C (zh) 2006-03-29
US6469446B1 (en) 2002-10-22
ATE272895T1 (de) 2004-08-15
DE50007265D1 (de) 2004-09-09

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